Variable pitch module real-time detection device

Abstract

The utility model relates to the technical field of wind power equipment detection, in particular to a variable pitch module real-time detection device, which can realize real-time monitoring and improve detection comprehensiveness and accuracy. Comprising a detection base which is arranged to be in a circular ring shape, and the outer side wall of the detection base is fixedly sleeved with an annular rack; the four guide mechanisms are circumferentially arranged on the inner side wall of the detection base; the rotation assembly is arranged on the outer end face of the detection base in a circular motion mode; the detection mechanism is arranged on the autorotation assembly and used for detecting a hydraulic pipeline of the variable pitch module; wherein the autorotation assembly comprises an autorotation support, the autorotation support is arranged on the outer end face of the detection base in a circular motion mode, and an autorotation motor is arranged on the autorotation support; the driving gear is rotationally arranged on the autorotation support and driven by an autorotation motor to rotate, and the driving gear is meshed with the annular rack; and the two rotating guide wheels are symmetrically and rotationally arranged on the autorotation support.

Description

Technical Field

[0001] This utility model relates to the technical field of wind power equipment testing, and in particular to a real-time testing device for a pitch module. Background Technology

[0002] The pitch system is a core component of a wind turbine generator. By flexibly adjusting the blade pitch angle, the pitch system can precisely control the wind energy captured by the blades according to different wind speed conditions, thereby ensuring the efficient and stable operation of the wind turbine generator. The hydraulic pipelines within the pitch system bear the crucial responsibility of transmitting hydraulic power, and their operational status directly affects the performance of the pitch system. If leaks, blockages, or abnormal pressure occur in the hydraulic pipelines, it will cause sluggish and inaccurate pitch control, or even lead to blade runaway, seriously threatening the safety of the wind turbine generator, resulting in a significant decrease in power generation efficiency and a sharp increase in maintenance costs.

[0003] Currently, there are many limitations to the inspection methods for hydraulic pipelines of pitch modules. Traditional inspection methods mainly rely on manual periodic inspections, which are not only inefficient and difficult to monitor in real time, but also greatly affected by human factors and prone to oversights. Therefore, there is an urgent need for a real-time inspection device for pitch modules. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this utility model provides a real-time detection device for a pitch module.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model discloses a real-time detection device for a pitch module, comprising:

[0007] The detection base is circular in shape, and a ring-shaped toothed rack is fastened to the outer wall of the detection base.

[0008] Four guiding mechanisms are arranged in a circular pattern on the inner wall of the detection base;

[0009] The self-rotating component, with its circular motion set on the outer end face of the detection base;

[0010] The inspection mechanism, located on the self-rotating component, is used to inspect the hydraulic pipelines of the pitch module;

[0011] The self-rotating component includes:

[0012] The rotating support has a circumferential motion mechanism set on the outer end face of the detection base, and a rotating motor is installed on the rotating support.

[0013] The drive gear is rotatably mounted on the self-rotating support and is driven to rotate by the self-rotating motor. The drive gear meshes with the ring rack.

[0014] Two rotating guide wheels are symmetrically mounted on a rotating support, and each of the two rotating guide wheels has a groove. The two rotating guide wheels roll along the two ends of the detection base through the groove.

[0015] Furthermore, the guidance mechanism includes:

[0016] The movable wheel support is fixedly installed on the inner wall of the detection base;

[0017] Two guide rods are symmetrically arranged in the support of the moving wheel;

[0018] Two slide blocks are slidably mounted on two guide rods, and each slide block is oscillatingly equipped with a hinge rod;

[0019] Two elastic springs are respectively sleeved on two guide rods, and the elastic springs are located on the inner side of the guide rods, and the elastic springs are in contact with the side wall of the slide.

[0020] Two movable wheel support rods are symmetrically oscillating on the movable wheel support. Each movable wheel support rod has a movable wheel rotatably mounted on it. The movable wheel support rod is hinged to the hinge rod on the same side.

[0021] Furthermore, a cushioning pad is provided at the end of the slide.

[0022] Furthermore, the moving wheels are made of rubber.

[0023] Furthermore, the testing institutions include:

[0024] An adjusting seat is fixedly installed on a self-rotating support, and an adjusting motor is installed on the adjusting seat.

[0025] The adjusting screw is rotatably mounted in the adjusting seat and is driven to rotate by the adjusting motor.

[0026] The adjusting slide is slidably mounted on the adjusting seat and is threadedly engaged with the adjusting screw.

[0027] The testing frame is fixedly connected to the adjusting slide, and moves through the adjusting slide.

[0028] An ultrasonic testing instrument, mounted on a testing frame, is used to inspect pipelines.

[0029] Furthermore, the adjusting slide is equipped with a travel lever, and the adjusting slide is equipped with two travel switches. The travel switches and the travel lever work together to limit the travel of the adjusting slide.

[0030] Furthermore, the testing frame is equipped with a fixed base and a fixed pressure block, which are connected by bolts. After the fixed base and the fixed pressure block are connected, a clamping groove is provided in the middle for clamping and fixing the ultrasonic testing instrument.

[0031] Furthermore, soft rubber pads are provided on the clamping groove walls of the fixed base and the fixed pressure block.

[0032] In the above technical solution, the real-time detection device for pitch module provided by this utility model has the following beneficial effects:

[0033] The device continuously monitors hydraulic pipelines through the continuous circular motion of its detection mechanism, which follows the rotation of the self-rotating component. This replaces traditional manual periodic inspections, enabling real-time monitoring and avoiding the low efficiency and inability to monitor in real time associated with manual inspections. The circular detection base, combined with the circular motion of the self-rotating component, allows the detection mechanism to cover the entire circumference of the pipeline. Simultaneously, four circumferentially arranged guide mechanisms ensure the device is stably mounted on the pipeline, guaranteeing a thorough inspection without blind spots and reducing oversights caused by human factors during manual inspections. The stable installation on the pipeline via the guide mechanisms allows it to adapt to the vibration and other operating environments of wind turbine generators, ensuring long-term stable operation. It promptly detects leaks and blockages in hydraulic pipelines, preventing safety accidents such as slow pitch control and blade malfunction, and reducing the risks of decreased power generation efficiency and increased maintenance costs. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the embodiments will be briefly described below.

[0035] Figure 1 This is a schematic diagram of the structure of this utility model;

[0036] Figure 2 This is an enlarged structural diagram of the self-rotating component;

[0037] Figure 3 This is an enlarged structural schematic diagram of the guidance mechanism;

[0038] Figure 4 This is an enlarged structural diagram of the testing organization;

[0039] Figure 5 This is a schematic diagram of the connection structure between the fixed base and the fixed pressure block;

[0040] The following are labels in the attached diagram: 1. Detection base; 11. Ring rack; 2. Guide mechanism; 21. Moving wheel support; 22. Guide rod; 23. Slide; 24. Spring; 25. Moving wheel support rod; 26. Moving wheel; 27. Hinge rod; 3. Rotation assembly; 31. Rotation support; 32. Rotation motor; 33. Drive gear; 34. Rotating guide wheel; 4. Detection mechanism; 41. Adjustment seat; 42. Adjustment screw; 43. Adjustment motor; 44. Adjustment slide; 45. Detection frame; 46. Ultrasonic detector; 47. Forming lever; 48. Limit switch; 4a. Fixed base; 4b. Fixed pressure block. Detailed Implementation

[0041] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0042] See Figure 1-5 As shown;

[0043] A real-time detection device for a pitch module according to an embodiment of this utility model includes:

[0044] The detection base 1 is configured as a ring shape, and a ring-shaped toothed rack 11 is fastened to the outer wall of the detection base 1.

[0045] Four guiding mechanisms 2 are arranged in a circular pattern on the inner wall of the detection base 1;

[0046] The self-rotating component 3, with its circular motion set on the outer end face of the detection base 1;

[0047] The inspection mechanism 4 is installed on the self-rotating component 3 and is used to inspect the hydraulic pipelines of the pitch module.

[0048] Among them, the self-rotating component 3 includes:

[0049] The self-rotating support 31 is set on the outer end face of the detection base 1 for circumferential motion, and a self-rotating motor 32 is provided on the self-rotating support 31;

[0050] The drive gear 33 is rotatably mounted on the self-rotating support 31 and is driven to rotate by the self-rotating motor 32. The drive gear 33 meshes with the ring rack 11.

[0051] Two rotating guide wheels 34 are symmetrically rotated on the self-rotating support 31, and both rotating guide wheels 34 are provided with grooves. The two rotating guide wheels 34 are rolled on the two ends of the detection base 1 through the grooves.

[0052] By adopting the above technical solution, the annular detection base 1 is fitted onto the outside of the hydraulic pipeline of the pitch module through four guide mechanisms 2 arranged circumferentially on its inner sidewall. The moving wheels 26 of the guide mechanisms 2 contact the outer wall of the pipeline, achieving initial positioning and support of the device. The self-rotating motor 32 on the self-rotating support 31 starts, driving the drive gear 33 connected to it to rotate. Since the drive gear 33 meshes with the annular rack 11 on the outer sidewall of the detection base 1, the self-rotating support 31 moves circumferentially along the outer end face of the detection base 1 under the action of gear transmission. At the same time, the two rotating guide wheels 34 on the self-rotating support 31 roll along the two ends of the detection base 1 through grooves, providing guidance and stable support for the circumferential movement of the self-rotating support 31, ensuring the stability of its movement trajectory. The detection mechanism 4 set on the self-rotating support 31 of the self-rotating component 3 moves circumferentially with the self-rotating support 31, and performs all-round inspection of the hydraulic pipeline of the pitch module during the movement. Real-time detection allows for monitoring of pipeline leaks, blockages, or abnormal pressure. The device, through the continuous circular motion of the detection mechanism 4 along with the rotating component 3, enables uninterrupted monitoring of the hydraulic pipeline, replacing traditional manual periodic inspections and achieving real-time monitoring. This avoids the low efficiency and inability to monitor in real-time by manual inspections. The circular base 1, in conjunction with the circular motion of the rotating component 3, allows the detection mechanism 4 to cover the entire circumference of the pipeline. Simultaneously, four circumferentially arranged guide mechanisms 2 ensure the device is stably mounted on the pipeline, guaranteeing a comprehensive detection process and reducing oversights caused by human factors during manual inspections. The stable installation of the device on the pipeline via the guide mechanisms 2 allows it to adapt to the vibration and other working environments of wind turbine generators, ensuring long-term stable operation. It promptly detects leaks and blockages in the hydraulic pipeline, preventing safety accidents such as slow pitch control and blade malfunction, and reducing the risk of decreased power generation efficiency and increased maintenance costs.

[0053] As a preferred embodiment of the above technical solution, such as Figure 3 As shown, the guidance mechanism 2 includes:

[0054] The movable wheel support 21 is fixedly installed on the inner side wall of the detection base 1;

[0055] Two guide rods 22 are symmetrically arranged in the moving wheel support 21;

[0056] Two slide blocks 23 are slidably mounted on two guide rods 22 respectively, and each slide block 23 is oscillatingly provided with a hinge rod 27;

[0057] Two elastic springs 24 are respectively sleeved on the two guide rods 22, and the elastic springs 24 are located on the inner side of the guide rods 22, and the elastic springs 24 are in contact with the side wall of the slide block 23.

[0058] Two movable wheel support rods 25 are symmetrically oscillating on the movable wheel support 21. Each movable wheel support rod 25 has a movable wheel 26 rotatably mounted on it. The movable wheel support rod 25 is hinged to the hinge rod 27 on the same side.

[0059] In this embodiment, the guide mechanism 2 is fixed to the inner wall of the detection base 1 by the movable wheel support 21, and the four guide mechanisms 2 are arranged in a circle. In the initial state, the spring spring 24 is in a natural state, pushing the slide 23 to maintain an outward position on the guide rod 22. The slide 23 drives the movable wheel support 25 to swing outward through the hinge rod 27, so that the movable wheel 26 is in contact with the outer periphery of the hydraulic pipeline in the pitch module or the corresponding contact surface of the installation environment. The guide mechanism 2 reduces the friction between the detection base 1 and the hydraulic pipeline or installation environment by the rolling characteristics of the movable wheel 26, ensuring that the detection base 1 is stably positioned as the pitch module moves. At the same time, the four circumferentially arranged guide mechanisms 2 work together to restrict the detection base 1. The radial sway provides a stable detection reference for the self-rotating component 3 and the detection mechanism 4; the moving wheel 26 is always in contact with the hydraulic pipe or mounting surface by the elastic force of the spring 24, which can adapt to pipes of different diameters or small dimensional deviations, enhancing the adaptability of the device to different pitch modules; the four circumferentially arranged guide mechanisms 2 form symmetrical constraints, effectively limiting the radial displacement of the detection base 1, avoiding the deviation of the detection reference caused by pitch action or vibration, and ensuring the detection accuracy of the detection mechanism 4; the moving wheel 26 can roll to contact the contact surface, which greatly reduces frictional resistance compared to sliding contact; at the same time, the sliding cooperation between the guide rod 22 and the slide 23 ensures a smooth adjustment process, reduces component wear, and extends the service life of the device.

[0060] As a preferred embodiment of the above technical solution, a buffer pad is provided at the end of the slide block 23;

[0061] In this embodiment, the buffer pad avoids rigid collision between the slide 23 and the moving wheel support 21, reducing the risk of component wear, deformation or cracking, and extending the overall service life of the guide mechanism; the wind turbine generator itself vibrates during operation, and the mechanical movement of the detection device may also generate vibration and noise; the buffer pad absorbs impact energy through elastic deformation, reduces vibration transmission during the sliding process of the slide, and at the same time reduces the noise generated by metal collision, thus improving the stability of the device operation.

[0062] As a preferred embodiment of the above technical solution, the movable wheel 26 is configured as a rubber wheel;

[0063] In this embodiment, the rubber wheel is made of soft and elastic material, which can avoid scratches, wear or corrosion caused by hard contact when it comes into contact with the metal hydraulic pipeline, thus extending the service life of the hydraulic pipeline and reducing the risk of leakage caused by pipeline damage. The moderate friction can prevent the moving wheel 26 from slipping on the pipeline surface, ensuring that the detection device adjusts its position synchronously with the pitch change action, and ensuring the continuity of real-time detection. The rolling friction noise between the rubber wheel and the pipeline surface is much lower than that of the metal wheel, reducing noise pollution during equipment operation.

[0064] As a preferred embodiment of the above technical solution, such as Figure 4 As shown, testing organization 4 includes:

[0065] An adjusting seat 41 is fixedly installed on a self-rotating support 31, and an adjusting motor 43 is provided on the adjusting seat 41.

[0066] The adjusting screw 42 is rotatably mounted in the adjusting seat 41 and is driven to rotate by the adjusting motor 43.

[0067] The adjusting slide 44 is slidably mounted on the adjusting seat 41 and is threadedly engaged with the adjusting screw 42.

[0068] The testing frame 45 is fixedly connected to the adjusting slide 44 and moves through the adjusting slide 44.

[0069] An ultrasonic testing instrument 46 is mounted on a testing frame 45 and is used to test pipes;

[0070] In this embodiment, the ultrasonic detector 46, fixed on the rotating support 31, moves in a circular motion along the detection base 1 with the rotating assembly 3. When it is necessary to adjust the distance between the ultrasonic detector 46 and the hydraulic pipeline or to align it with a specific detection area, the adjusting motor 43 starts, driving the adjusting screw 42 to rotate within the adjusting seat 41. Since the adjusting slide 44 is threadedly engaged with the adjusting screw 42 and slidably mounted on the adjusting seat 41, the rotational motion of the screw is converted into the linear motion of the adjusting slide 44, thereby driving the detection frame 45 and the ultrasonic detector 46, which are fixedly connected to it, to move synchronously until they reach the appropriate detection position. Driven by the rotating assembly 3, the detection mechanism 4 moves in a circular motion along the detection base 1, realizing the scanning of the entire circumference of the hydraulic pipeline. At the same time, the ultrasonic detector 46, supported by the detection frame 45, emits ultrasonic waves into the pipeline and receives reflected signals in real time. The system monitors pipelines for leaks, abnormal wall thickness, pressure fluctuations, and other issues. For detailed inspection of specific areas, the position of the ultrasonic detector 46 can be readjusted via motor 43 to ensure signal accuracy. By adjusting the motor 43 and driving the adjusting screw 42, the movement distance of the adjusting slide 44 can be precisely controlled, allowing the ultrasonic detector 46 to flexibly adjust its distance from the pipeline based on pipe diameter and inspection requirements, ensuring strong ultrasonic signal reception and high detection accuracy. For suspected fault areas, fine-tuning the position enables focused inspection, solving the problem of accurately focusing on critical areas in traditional manual inspections. The detection mechanism 4 moves in a circular motion with the rotating component 3, covering the entire circumference of the pipeline. Simultaneously, the linear movement of the adjusting slide 44 adapts to hydraulic pipelines of different diameters, improving the device's versatility with different pitch modules.

[0071] As a preferred embodiment of the above technical solution, such as Figure 4 As shown, the adjusting slide 44 is provided with a travel lever 47, and the adjusting seat 41 is provided with two travel switches 48. The travel switches 48 cooperate with the travel lever 47 to limit the travel of the adjusting slide 44.

[0072] In this embodiment, by limiting the range of movement of the adjusting slide 44, it is possible to prevent it from colliding with other components due to excessive movement, thereby preventing damage to the mechanical structure and extending the service life of the equipment. The ultrasonic detector 46 is mounted on the testing frame 45, and the testing frame is fixedly connected to the adjusting slide 44. The travel limit ensures that the ultrasonic detector always moves within the preset effective testing range, avoiding distortion of the testing data due to exceeding the range and ensuring testing accuracy.

[0073] As a preferred embodiment of the above technical solution, such as Figures 4 to 5 As shown, the testing frame 45 is provided with a fixed base 4a and a fixed pressure block 4b. The fixed base 4a and the fixed pressure block 4b are connected by bolts. After the fixed base 4a and the fixed pressure block 4b are connected, a clamping groove is provided in the middle for clamping and fixing the ultrasonic testing instrument 46.

[0074] In this embodiment, the clamping groove formed by the fixed base 4a and the fixed pressure block 4b can form a stable clamping force on the ultrasonic detector 46, preventing it from shifting its detection position due to vibration and shaking during device movement, thus ensuring the accuracy of the detection data. The bolt connection method is simple in structure and easy to operate, facilitating the quick installation, replacement or maintenance of the ultrasonic detector 46 and reducing the time cost of equipment maintenance.

[0075] As a preferred embodiment of the above technical solution, a soft rubber pad is provided on the clamping groove wall between the fixed base 4a and the fixed pressure block 4b.

[0076] In this embodiment, the soft rubber pad is soft and elastic, which can prevent the ultrasonic detector 46 from directly contacting the metal material of the fixed base 4a and the fixed pressure block 4b, and prevent the surface of the equipment from being indented, scratched or worn due to excessive clamping force, thus extending its service life.

[0077] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A real-time detection device for a pitch module, characterized in that, include: A detection base, wherein the detection base is configured as an annular shape, and an annular toothed rack is fastened to the outer wall of the detection base; Four guiding mechanisms are arranged in a circular pattern on the inner sidewall of the detection base; The self-rotating component, with its circular motion configured on the outer end face of the detection base; The inspection mechanism, installed on the rotation component, is used to inspect the hydraulic pipelines of the pitch module; The self-rotating component includes: A self-rotating support is provided on the outer end face of the detection base, and a self-rotating motor is provided on the self-rotating support. A drive gear is rotatably mounted on the self-rotating support and is driven to rotate by the self-rotating motor. The drive gear meshes with the annular rack. Two rotating guide wheels are symmetrically arranged on the self-rotating support, and both rotating guide wheels are provided with grooves. The two rotating guide wheels are rolled on both ends of the detection base through the grooves.

2. The real-time detection device for a pitch module as described in claim 1, characterized in that, The guidance mechanism includes: A movable wheel support is fixedly installed on the inner side wall of the detection base; Two guide rods are symmetrically arranged in the movable wheel support; Two slide blocks are slidably mounted on two guide rods, and each slide block is oscillatingly provided with a hinge rod; Two elastic springs are respectively sleeved on the two guide rods, and the elastic springs are disposed on the inner side of the guide rods and are in contact with the side wall of the slide block; Two movable wheel support rods are symmetrically swinging on the movable wheel support, and each movable wheel support rod has a movable wheel rotatably mounted on it. The movable wheel support rod is hinged to the hinge rod on the same side.

3. The real-time detection device for a pitch module as described in claim 2, characterized in that, The end of the slide is provided with a cushioning pad.

4. The real-time detection device for a pitch module as described in claim 2, characterized in that, The movable wheels are made of rubber.

5. The real-time detection device for a pitch module as described in claim 1, characterized in that, The testing institutions include: An adjusting seat is fixedly installed on the self-rotating support, and an adjusting motor is provided on the adjusting seat; An adjusting screw is rotatably mounted in the adjusting seat and is driven to rotate by the adjusting motor. An adjusting slide is slidably mounted on the adjusting seat and threadedly engaged with the adjusting screw. The testing frame is fixedly connected to the adjusting slide and is moved by the adjusting slide. An ultrasonic testing instrument, mounted on the testing frame, is used to inspect the pipeline.

6. The real-time detection device for a pitch module as described in claim 5, characterized in that, The adjusting slide is provided with a travel lever, and the adjusting seat is provided with two travel switches. The travel switches cooperate with the travel lever to limit the movement travel of the adjusting slide.

7. The real-time detection device for a pitch module as described in claim 5, characterized in that, The testing frame is equipped with a fixed base and a fixed pressure block, which are connected by bolts. After the fixed base is connected to the fixed pressure block, a clamping groove is provided in the middle for clamping and fixing the ultrasonic testing instrument.

8. The real-time detection device for a pitch module as described in claim 7, characterized in that, The fixed base and the fixed pressure block clamping groove wall are provided with soft rubber pads.

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